Ten years have passed since her husband passed away. With her only son, Tonoharu, now employed, Hotaru is finally beginning to think about her happiness as a woman. However, she still has feelings for her late husband towards her current boyfriend, Seiichi, and even though they have become physically involved, she is unable to take the next step. Just as she is thinking that things can't go on like this, Tonoharu and Seiichi suddenly get into a fistfight. Hotaru is shocked by this sudden turn of events and asks him why, and there she discovers Tonoharu's secret feelings for her...